F-shaped building-block.



M. LUTGBN.

NG BLOOK.

Patented Sept 15,1914

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Bpecmcatien of man Patent.

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apnea mechanics, is. semi-as. ream.

ing to be a full, clear, and exact description of the invention, such as will enable nthers'shilled in the art to which it rtains to make and use the same.

This invention relates'to building blocks,

and it more'particularly relates to an improved form of ventilated wall blocks.

An object of the invention is to so form and proportion building blocks of this character that they may be united in the formation of walls of did'erent thicknesses without impairing their efiiciency, either with regard to strength or ventilating qualities.

Another object is to provide an improved buildin block of this character which effectua y prevents the entrance of moisture to the inner wall.

Another object is to provide a buildin block of this character which is sim le an easy to construct, convenient to ban 1e, and comparatively ine ensive Other objects an advantages may be recited hereinafter in the claim.

In the accompanying drawings, which supplement this specification: Figure 1 is a perspective view, illustrating a corner of an eight-inch wall constructed of building blocks made in accordance with my invention. Fig. 2 is a rspective view of the corner of a ten-inc wall, in which blocks of the same kind and dimensions are employed as in Fig. 1, the blocks difi'erently placed with relation to each other, so as to increase the thickness of the wall. Fig. 3 is a top plan view of one of the F-shaped blocks, and Fig. 4 is a similar view of one of thel-sha ed blocks employed in connection with t e F-shaped blocks in forming the corner of the wall.

Referring to these drawings, in which similar reference characters correspond with similar parts throu bout the several views:

80 Each F-shaped bloc consists'of amain body face 8 o the block may be rough,

portion 5, a ri ht-an led end extension 6, and a ri ht-ang ed mi dle extension 7 The %plished, or of any desired configuration. ach l. sbaped b ock 9 consists of two face portions 10 and 11 standing at right angles to each end extensions 13 of each op its face o'rtion 11. The lL-shaped blocks 9 are emp eyed in connection with the F- shaped blocks in the construction of ten-inch walls or other relatively thick walls, as hereinafter explained.

The general dimensions of the lF-shaped bloc'ksmay be varied according to the thick? nesses of the Walls desired to be constructed therewith, but in the construction of eightand-ten inch walls respectively, the following dimensions are given by way of example: The length of the base 5 is fourteen inches, the length of the end extension or wing 65- is six inches, and the distance from the face 8 to the end of the extension 7 is four inches, while the thickness of each of these'elements 5 6 and 7 is two inches and the he' ht may be from six to eight inches,

prefera ly the latter. From the foregoing,

.1t will be seen that the wing 6 extends four inches from the inner wall of the base 5, while the wing 7 extends two inches, or just half the distance to which the wing 6 extends trom said inner wall. The wing 7 is located exactly at the middle of the base 5, so that when the F-shaped blocks are placed together as-illustrated m Fig. 1, the wing 6 of each block is in contact with the inner wall of the op site contiguous block, and the wings 7 oflhese opposite blocks have their. parallel vertical surfaces in the same vertical lanes. In other words, when two of these -shaped blocks are placed together in reversed and-oppositely disposed position they combine to form a rectangular building section eight by fourteen inches in horizontal area, substantially in the form of a figure 8 having two vertical air passages or chambers therethrough. However, when these blocks are placed together as illustrated-in Fig. 2, the end extensions 6 of each block abut against the rectangular extension 7 of the opposite block, while the f h h h d iite block orm wings w 10 exten op ite y on parallel planes from the rectsliz'ular middle portion, which latter constitutes a vertical air chamber. In this latter combination of the blocks, it will be seen that the extensions or wings I3 abut the L-shaped blocks to the right and left respectively, so as to form air chambers as shown.

When the F-shaped blocks are'combined to form an eight-inch wall, the L-sha ed blocks are d' with entirely; w 'le LOZIZLI other, and its face portion '10 islonger than have provided a nil in fo the. ten-inch wall from the same blocks, the L-shaped blocks 9 are combined therewith in the manner shown.

From the fore o' it will be seen that I mg block of this character which is fully capable of attaining the objects and advantages ascribed thereto, in

- a thoroughly'igractical and eflieient manner.

Ido not it my invention to the exact details of construction, combination and arrangements of parts, as herewith illustrated and described, but my invention may only be limited by a reasonable interpretation of the claim.

I claim: 1

A building section consist' of two F-shaped blocks and two L-shaped blocks,

its other wing fitted aga sions of each other, so as to form a rectangular body ha oppositely extend 'grojections, said L- aped blocks being ezidfi tted with one of its wings against. an end done of the F-shaped ocks and having inst the inner surface of the endportion of the other said block. V

In testimony whereof, I afiix my signature, in the presence of two witnesses.

MATHIAS LUTGEN. Witnesses:

J0me P.- Munonnw, Lno E. Momnsw. 

